Machine for making fibrous composition



April 7, 1925. 1,532,660

I. D. PATTERSON MACHINE FOR MAKING FIBROUS COMPOSITION Filed Sept. 16. 1922 INVENTOR P/77'7'5E30N 6 E I ATTOR E Y Patented Apr. 7, 1925.

' UNITED STATES rarizrrr OFFl-CE.

IAN D. PATTERSON, OF AKRON, OHIO, ASSIGNOR TO THE GOODYEAR TIRE & RUIBBEB COMPANY, OF AKRON, OHIO, A CORPORATION OF OHIO.

MACHINE FOR MAKING rrnnous ooMrosIrIo-N.

Applicatioirflled se tember 16, 1922. Serial No. 588,645.

To all ivhom it may concern:

Be it-knownthatI, IAN D. PATTERSON, a citizen of the United States, and resident.

of Akron, Ohio, have invented newand us.-

ful Improvements in Machines for Making Fibrous Composition, of which the following is a specification. I

My invention relates to a machine for making fibrouscomposition, and it has parpress the same by causing it to-be carried,

by means of a traveling belt, beneath a pressure roller member.

' pressed the composition, but on account of the sudden application of. the pressure, the

fibers were frequently crushed and broken, so and in many instances the felted relation of the fibers was disturbed, thus materially reducing the strength thereof. For this reason, the Fourdrinier machine, as heretofore constructed, could not be employed for the manufacture of any thick material, such as cardboard, which is now made up .of laminations of relatively thin material.

. By my invention I have eliminated the aforementioned objection by a novel means for gradually applying any desired pressure to a fibrous composition of any desired thickness in such manner as to obviate the possibility of breaking or crushing the fibers, and to avoid dlsarrangement of the fibers from their natural felted arrangement. In the accompanying drawing: Fig. 1 is a cross-sectional view of a machine for making fibrous composition, constructed in accordance with my invention, portions thereof being omitted for the sake of clarity; and Fig. 2 is a plan view of a pressure applying plate employed in the machine illustrated in'Fig. 1,

ticular relation to machines of the'Four-' fibers deposited thereon.

This member com I In the machine, a traveling screen 3- passes over an idling pulley 4, through an inclined plane 5, over a pulley 6, through an upper horizontal plane 7, over a driving pulley 8, and finally through a lower horizontal plane 9, back to the idling pulley 4. The screen 3 moves in the direction indicated by arrows v3 While passing through the inclined plane 5, a quantity of fibers, suitably treated, is disposed thereon. The fibers, in suspen- SlOIl n a. l1qu1d,-are introduced to the carrier 3 by being deposited in a chamber 10 of which that portion of the carrier 3, which is'disposed in the inclined plane 5, constitutes a side wall. cooperates with the chamber 10, draws the liquid, in which the'fibers aresus ended,

through the traveling screen, leavlng the The resulting fibrous composition, indicated at 12, is carried by the screen 3 into the horizontal plane 7, where it is engaged by an auxiliary moving screen 13, which is mounted on pulleys 14,-

and moves in the direction indicated by arrows 13*. The auxiliary screen may be driven by its contact with the fibrous composition 12, or-it may. be driven from the driving pulley 8, or driven separately. If driven separately, it is necessary that it be driven at the same rate of speed as is the screen 3, in order that the feltedarrangement of the fibers be not disturbed thereby.

The pressure applying mechanism consists of a flat plate 15, provided with an upwardly curved portion 16 at the front end thereof, and a similar curved portion 17 at the rear end thereof. The plate is supported from a horizontally disposed stationary member 18 by means of a series of upright threaded supports and adjusting members 19 to 22, inclusive. llhe position of theplate .15 is controlled by so'ro-tating'the threaded supports 19 to 22 as to raise and lower the plate with respect to the stationary supporting member 18. By this mechanism the several portions of the plate may be so adjusted as to very gradually increase the pressure on the fiber composition, asit moves along the horizontal lane 7.

If so desired, the material maybe washed by means of liquid sprays 23 disposed intermediate the threaded supports. The excess liquid from the sprays 23, or any. liquid which may be displaced thereby, is collected Asuction box 11, which by means of a. suction box 24, dis osedbeneath the screen 3 and adjacent to t e sprays 23 and the pressure member 15. The plate 15 is perforated so as to permit the liquid from the sprays 23 to come into contact with the material 12. As the screen 13 is interposed between the plate 15 and the fibrous composition 12, the material cannot in any way be injured therefrom.

From the foregoing description it Wlll be apparent that I have provided a simple and inexpensive method of applying an adjustable pressure upon the material 12 in order to compress the same. It will also be apparent that this pressure exerting mech anism can in no wise injure the materlal, owing to the protection afforded by the belt 13. Also, it will be observed, that the tension of the traveling screens 9 and 13 is such that the pressure exerted by the plate 15 is being applied very gradually, even before the material comes beneath the plate 15, and that the material is thoroughly protected against any sudden application of pressure, which might tend to injure it.

Although I have illustrated but a single form of my invention and have described in. detail but a single application thereof, it will be apparent to those skilled in the art that it is not so limited, but that various minor-changes and modifications may be made therein without departing from the spirit of my invention, and I desire 'tobe limited only by the scope of the appended claims.

What I claim is:

1. A machine for making fibrous composition comprising means for transporting the compositlon, and means for gradually compressing the same, said last mentioned means comprising a perforated fiat pressure plate.

2. A machine for making afiber composition comprising a movable screen adapted to transport the fiber composition, an auxiliary screen adapted to engage and move with the fiber composition deposited upon the transporting screen, and a fiat perforated plate adapted to engage the auxiliary screen for compressing the fiber composition.

3. A machine for making a fiber composition comprising a movable screen adapted to transport the fiber composition, an auxiliary screen adapted to engage and move with the fiber composition deposited upon the transporting screen, and a fiat perforated plate adapted to engage the auxlliary screen for compressing the fiber composition, said plate being adjustable with respect to the screens.

4. A machine for making a fiber composition comprisin a movable screen adapted to transport the fi ber compositioman auxiliary screen adapted to engage and move with the fiber composition deposited upon the trans porting screen, and a flat plate adapted to engage the auxiliary screen for compressing the fiber composition, and means for adjust-- ing the several portions of said plate with respect to said screens.

5. A machine for making a fiber composition comprising a movable screen adapted to transport the fiber composition, an auxiliary screen adapted to engage and move with the fiber composition deposited upon thetransporting screen, and a fiat plate adapted to engage the auxiliary screen for compressing the fiber composition, the leading edge of said plate being socurved as to permit of easy introduction of the composition to the plate.

6. A machine for making a fiber composition comprising a movable screen adapted to transport the fiber composition, an auxiliary screen adapted to engage and move with the fiber composition deposited upon the transporting screen, and a flat perforated plate adapted to engage the auxiliary screen for compressing the fiber composition, the leading portion of said plate being adapted to exert a relatively light pressure on said fiber composition and the trailing portion of said plate to exert a relatively heavy pressure thereon.

7. A machine for making a fiber composition comprising a movable screen adapted to transport the fiber composition, an auxiliary screen adapted to engage and move with the fiber composition deposited upon the transporting screen, and a flat perforated plate adapted to engage the auxiliary screen for compressing the fiber composition, the leading portion of said plate being adapted to exert a relatively light pressure on said fiber composition and the trailing portion of said plate to exert a relatively heavy pressure thereon, and means for adjusting the pressure of the several portions of the plate.

In witness whereof, I have hereunto signed my name in the presence of two subscribing witnesses. 1

' IAN DJPATTERSON.

Witnesses:

F. E. JOEL, F. A. LIND. 

